Douglas K. Rex, MD

The prevalence of sessile serrated polyps in a screening population was 4.8%.

The estimated prevalence of sessile serrated polyps (also known as sessile serrated adenomas) in the general population has varied but is often reported at approximately 2%. Researchers in the Netherlands examined the prevalence of serrated polyps and association with synchronous advanced neoplasia in 1426 patients (51% male; median age, 60) in a colonoscopy screening trial.

Colonoscopies were performed by five experienced endoscopists (cecal intubation rate, 98.7%; median withdrawal time, 10 minutes). The prevalence of sessile serrated polyps was 4.8%, including 21 (1.5%) sessile serrated polyps with dysplasia. Only one patient with a traditional serrated adenoma was identified. Proximal hyperplastic polyps and sessile serrated polyps were associated with synchronous advanced neoplasia, particularly when they were large (≥10 mm).

Citation(s):

Hazewinkel Y et al. Prevalence of serrated polyps and association with synchronous advanced neoplasia in screening colonoscopy. Endoscopy 2014 Mar; 46:219.